API

Charging as a Service

Get paid straight from the mobile balance

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What it does

Monetize your app with frictionless micro-payments. Charge an amount directly to a subscriber's Banglalink bill, approved by an OTP they enter. No cards, no wallets.

  • Charge an amount to the mobile account
  • OTP sent to the subscriber to approve
  • Verify the OTP to complete the charge
  • Charging notification callback
Charge to mobile balanceNo cards or walletsOTP-authorized charging
POST/caas/direct/debit

OTP Generation

https://api.applink.com.bd/caas/direct/debit

curl -X POST https://api.applink.com.bd/caas/direct/debit \
  -H "Content-Type: application/json;charset=utf-8" \
  -d '{
    "applicationId": "APP_999999",
    "password": "a07118cda5215fc6d01db5b2ab848edd",
    "externalTrxId": "256091232",
    "amount": "5.00",
    "paymentInstrumentName": "Mobile Account",
    "subscriberId": "tel:8801973579363",
    "Currency": "BDT"
  }'
Endpoints

Everything this API exposes

Plain HTTP, JSON in and JSON out. Endpoints marked as hosted by you are the ones AppLink calls back on your server.

POST/caas/direct/debit

OTP Generation

This service is used by the developer to initiate a one time charging for the subscriber on his/her mobile account. Upon the request, Applink will generate and send an OTP to the subscriber's MSISDN. This OTP must be entered by the subscriber into the mobile/web application to authorize the one time charge.

Fields & examples
POST/caas/otp/verify

OTP Verification

This service is used by the developer to verify an OTP entered by a subscriber into the application. Upon a successful verification, one time charging will be deducted from the subscriber's mobile account.

Fields & examples
POST/caas/chargingNotificationAppLink calls you

Charging Notification

Charging notification is returned to the developer application upon a charging attempt. It will denote whether the charging is successful or not. Charging notification is returned to the endpoint you have configured under the 'charging notification URL' section in CaaS API when creating the application

Fields & examples
What subscribers pay
৳2 to ৳10 per chargeSee all pricing

Sign-up and registration are free. Banglalink charges the subscriber and you receive a revenue share. Applicable taxes to be added.

Looking for ideas? Browse the idea library to see what other builders have made with this API and the rest of the platform.

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